I am not a philatelist. Rather, this is another in the ongoing series of incidental favorites, ripped from storage and thrown on the web. Attractive sets of vintage US stamps from the 1960s and early 70s. Compare this handsome sampling with the current, ethically and aesthetically questionable "Hershey's" kiss postage.
Notable: the zip code guy; the quaint, almost folksy, "Mail Early in the Day" announcement at top; and the jarring use of the word "crippled" in the set second from bottom. My favorite: the 100th anniversary of Canada (1867-1967) at bottom, simple, abstract and bracing.